Bi-weekly vs monthly
Accelerated bi-weekly = one extra monthly payment per year. See what that one payment costs you and what it saves.
Your scenario
Result
The bi-weekly mortgage payment trick that actually works
Switching from monthly to accelerated bi-weekly payments is one of the few "tricks" in personal finance that genuinely delivers. It cuts years off a Canadian mortgage and saves tens of thousands in interest — automatically.
Accelerated vs standard bi-weekly
- Standard bi-weekly: 26 payments per year, each is half the monthly. Net annual outflow = exactly 12 monthly payments. No acceleration.
- Accelerated bi-weekly: 26 payments per year, each is half the monthly. Net annual outflow = 13 monthly payments worth (one extra). THIS is the version that saves you years and interest.
The label matters — confirm with your lender which version they're offering. "Bi-weekly" alone usually means standard; "accelerated bi-weekly" is the wealth-building option.
Why it works
You pay half your monthly payment every 2 weeks. There are 52 weeks in a year, so 26 bi-weekly payments. Half of monthly × 26 = 13 months of payments per calendar year. That extra month-equivalent goes 100% to principal, compounding over the remaining life of the loan.
How much it saves — typical Canadian mortgage
$540,000 mortgage at 4.84%, 25-year amortization:
- Monthly payment: $3,094/mo, $928k total paid, $388k total interest
- Accelerated bi-weekly: $1,547 every 2 weeks ($40,212/yr), $865k total paid, $325k total interest
- Savings: ~$63,000 interest + ~3 years off the amortization
When NOT to use accelerated bi-weekly
- Your cash flow is tight and the extra annual payment forces overdrafts
- You'd rather make one big annual lump-sum payment instead (mathematically equivalent over the long run)
- You're planning to break the mortgage within 12-18 months (the extra principal won't pay back the penalty math in time)
Related
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Questions about this calculator
- What is the difference between bi-weekly and accelerated bi-weekly?
- Plain bi-weekly divides the annual total across 26 payments, so you pay the same amount per year as monthly. Accelerated bi-weekly is half the monthly payment taken 26 times, which is the equivalent of thirteen monthly payments — the extra one goes straight to principal.
- How much does accelerated bi-weekly actually save?
- On a typical 25-year Canadian mortgage it removes roughly three to four years and tens of thousands in interest, purely from that one additional payment per year. It is the highest-return change available for the least effort.
- Does the payment frequency change my interest rate?
- No. The rate is set by your contract; frequency only changes how often principal is reduced and how many payments you make per year. The saving comes from paying down principal sooner and more often.
- Can I switch payment frequency mid-term?
- Most lenders allow it, often free and sometimes online. It is worth confirming you are moving to the accelerated version rather than plain bi-weekly, since the two sound identical and only one of them shortens the amortization.